[PATCH v2 0/1] MR422: riched20: Ensure MEPF_COMPLEX is unset when in password input mode. (#53335)

[Jinoh Kang (＠iamahuman)]

This is required to keep `riched20:richole test_clipboard()` from crashing once `ITextDocument::Undo` is implemented.

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  v2: riched20: Ensure MEPF_COMPLEX is unset when in password input mode.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/422